@article{765d00b4827140818a56452b559f6de7,
title = "Perovskite solar cells with a DMSO-treated PEDOT:PSS hole transport layer exhibit higher photovoltaic performance and enhanced durability",
abstract = "Despite being the most commonly used hole transport layer for p-i-n perovskite solar cells, the conventional PEDOT:PSS layer is far from being optimal for the best photovoltaic performance. Herein, we demonstrate highly conductive thin DMSO-doped PEDOT:PSS layers which significantly enhance the light harvesting, charge extraction, and photocurrent production of organo-lead iodide devices. Both imaging and X-ray analysis reveal that the perovskite thin films grown on DMSO-doped PEDOT:PSS exhibit larger grains with increased crystallinity. Altogether, these improvements result in a 37% boost in the power conversion efficiency (PCE) compared to standard p-i-n photovoltaics with pristine PEDOT:PSS. Furthermore, we demonstrate that DMSO-doped PEDOT:PSS devices possess enhanced PCE durability over time which we attribute primarily to fill factor stability.",
author = "Di Huang and Tenghooi Goh and Jaemin Kong and Yifan Zheng and Suling Zhao and Zheng Xu and Taylor, {Andr{\'e} D.}",
note = "Funding Information: The authors gratefully acknowledge the Fundamental Research Funds for the Central Universities (S16JB00060), the National Science Foundation (DMR-1410171) and the NSF-PECASE award (CBET-0954985) for partial support of this work. D. H. also acknowledges the support from the China Scholarship Council. The AFM and SEM used were supported by the Institute for Nanoscience and Quantum Engineering (YINQE) and NSF MRSEC DMR 1119826 for the Center for Research on Interface Structures and Phenomena (CRISP). The GIWAXS obtained at 1 W1A, BSRF. The authors further thank scientists of Diffuse X-ray Scattering Station in the experiments for the assistance with GIWAXS measurements and the Yale West Campus Materials Characterization Core for the help with the UPS spectra, as well as Mr Yang Li and Jiao Zhao from the Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University for discussion. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",
year = "2017",
month = mar,
day = "28",
doi = "10.1039/c6nr08375g",
language = "English (US)",
volume = "9",
pages = "4236--4243",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "12",
}